Home / 80,071.46-110,427.02-66,437.90

Finding the Fourth Proportional to 80,071.46, 110,427.02 and 66,437.90

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Solution

The fourth proportional to 80,071.46, 110,427.02 and 66,437.90 is: 91,624.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,071.46 : 110,427.02 = 66,437.90 : x
  2. Step 2: Convert to fraction form
    80,071.46/110,427.02 = 66,437.90/x
  3. Step 3: Cross multiply
    80,071.46x = 110,427.02 × 66,437.90
  4. Step 4: Simplify right side
    80,071.46x = 7,336,538,427.73
  5. Step 5: Solve for x
    x = 7,336,538,427.73/80,071.46
  6. Step 6: Final answer
    x = 91,624.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.